Soil Data Explorer - ST. MARYS

Official Series Description

Lab Data Summary

Aggregate lab data for the ST. MARYS soil series. This aggregation is based on all pedons with a current taxon name of ST. MARYS, and applied along 1-cm thick depth slices. Solid lines are the slice-wise median, bounded on either side by the interval defined by the slice-wise 5th and 95th percentiles. The median is the value that splits the data in half. Five percent of the data are less than the 5th percentile, and five percent of the data are greater than the 95th percentile. Values along the right hand side y-axis describe the proportion of pedon data that contribute to aggregate values at this depth. For example, a value of "90%" at 25cm means that 90% of the pedons correlated to ST. MARYS were used in the calculation. Source: KSSL snapshot (updated 2020-03-18). Methods used to assemble the KSSL snapshot used by SoilWeb / SDE

There are insufficient data to create the lab data summary figure.

Water Balance

Monthly water balance estimated using a leaky-bucket style model for the ST. MARYS soil series. Monthly precipitation (PPT) and potential evapotranspiration (PET) have been estimated from the 50th percentile of gridded values (PRISM 1981-2010) overlapping with the extent of SSURGO map units containing each series as a major component. Monthly PET values were estimated using the method of Thornthwaite (1948). These (and other) climatic parameters are calculated with each SSURGO refresh and provided by the fetchOSD function of the soilDB package. Representative water storage values (“AWC” in the figures) were derived from SSURGO by taking the 50th percentile of profile-total water storage (sum[awc_r * horizon thickness]) for each soil series. Note that this representation of “water storage” is based on the average ability of most plants to extract soil water between 15 bar (“permanent wilting point”) and 1/3 bar (“field capacity”) matric potential. Soil moisture state can be roughly interpreted as “dry” when storage is depleted, “moist” when storage is between 0mm and AWC, and “wet” when there is a surplus. Clearly there are a lot of assumptions baked into this kind of monthly water balance. This is still a work in progress.

Sibling Summary

Siblings are those soil series that occur together in map units, in this case with the ST. MARYS series. Sketches are arranged according to their subgroup-level taxonomic structure. Source: SSURGO snapshot (updated 2024-02-21), parsed OSD records (updated 2023-10-06) and snapshot of SC database (updated 2023-10-02).

Select annual climate data summaries for the ST. MARYS series and siblings. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the ST. MARYS series and siblings. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. Proportions can be interpreted as an aggregate representation of geomorphic membership. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Small Shannon entropy values suggest relatively consistent geomorphic association, while larger values suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

Competing Series

Soil series competing with ST. MARYS share the same family level classification in Soil Taxonomy. Source: parsed OSD records (updated 2023-10-06) and snapshot of the SC database (updated 2023-10-02).

Select annual climate data summaries for the ST. MARYS series and competing. Series are sorted according to hierarchical clustering of median values. Source: SSURGO map unit geometry and 1981-2010, 800m PRISM data (updated 2023-10-09).

Geomorphic description summaries for the ST. MARYS series and competing. Series are sorted according to hierarchical clustering of proportions and relative hydrologic position within an idealized landform (e.g. top to bottom). Proportions can be interpreted as an aggregate representation of geomorphic membership. Most soil series (SSURGO components) are associated with a hillslope position and one or more landform-specific positions: hills, mountain slopes, terraces, and/or flats. The values printed to the left (number of component records) and right (Shannon entropy) of stacked bars can be used to judge the reliability of trends. Shannon entropy values close to 0 represent soil series with relatively consistent geomorphic association, while values close to 1 suggest lack thereof. Source: SSURGO component records (updated 2023-10-04).

Soil series sharing subgroup-level classification with ST. MARYS, arranged according to family differentiae. Hovering over a series name will print full classification and a small sketch from the OSD. Source: snapshot of SC database (updated 2023-10-02).

Block Diagrams

No block diagrams are available.

Map Units

Map units containing ST. MARYS as a major component. Limited to 250 records.

Map Unit Name	Symbol	Map Unit Area (ac)	Map Unit Key	National Map Unit Symbol	Soil Survey Area	Publication Date	Map Scale
St. Marys-Bearskin families-Rock outcrop, volcanic association. 15 to 60 percent slopes.	165	4240	471581	htq9	ca763	1984	1:24000
Argora-St. Marys families, association, moderately steep mountain slopes	30MA	7065	2809056	2tr4f	mt603	1989	1:24000
Argora-St. Marys families, complex, steep mountain slopes, extremely stony	64MA	6505	2809116	2tr6c	mt603	1989	1:24000
Argora-St. Marys families, complex, steep mountain slopes, extremely stony	64MA	323	2995361	2tr6c	mt638	1985	1:24000
Argora-St. Marys families, association, moderately steep mountain slopes	30MA	62	2995329	2tr4f	mt638	1985	1:24000
Argora-St. Marys families, complex, steep mountain slopes, extremely stony	64MA	125	2995439	2tr6c	mt651	1997	1:24000
Argora-St. Marys families, association, moderately steep mountain slopes	30MA	22	2995408	2tr4f	mt651	1997	1:24000
ST. MARYS-CURTIS CREEK ASSOCIATION	SCG	2050	482821	j6dw	ut603	1968	1:20000
ST. MARYS GRAVELLY VERY FINE SANDY LOAM, 30 TO 60 PERCENT SLOPES	SAG	631	482820	j6dv	ut603	1968	1:20000
Duckree-St. Marys association, dry, 25 to 50 percent slopes	DMF	5110	503827	jx8h	ut604	1980	1:24000
St. Marys-Yeljack, north loams, 10 to 40 percent slopes	SME	2670	503909	jxc4	ut604	1980	1:24000
St. Marys loam, 10 to 40 percent slopes	SLE	1050	503908	jxc3	ut604	1980	1:24000
St. Marys cobbly loam, 30 to 50 percent slopes	SoG	30295	506627	k05t	ut609	1974	1:24000
Moweba-St. Marys complex, 30 to 50 percent slopes	MyG	19925	506592	k04p	ut609	1974	1:24000
St. Marys-Hoskin cobbly loams, 30 to 50 percent slopes	StG	5800	506630	k05x	ut609	1974	1:24000
St. Marys very stony loam, 40 to 60 percent slopes	SrG	2745	506628	k05v	ut609	1974	1:24000
St. Marys-Guilder complex, 3 to 25 percent slopes	SsD	1950	506629	k05w	ut609	1974	1:24000
St. Marys-Foxol association, very steep	SMG	2215	482968	j6km	ut612	1967	1:20000
Foxol-St. Marys association, very steep	FOG	2156	482904	j6hk	ut612	1967	1:20000

Map of Series Extent

Approximate geographic distribution of the ST. MARYS soil series. To learn more about how this distribution was mapped, or to compare this soil series extent to others, use the Series Extent Explorer (SEE) application. Source: generalization of SSURGO geometry (updated 2023-10-04).